Human bionts (may be baseline, nearbaseline, or even moderate tweaks, rianths, cyborgs, su, etc) living without the supervision of higher toposophic intellects. They have their own governments, industry, etc, just like in the days of Old Earth.
Three types:
Cultivated Wildhu - colonies that have specifically been allowed or cultivated in parks, reserves, megastructures, planets, and societiums by the ai themselves.
Tolerated Wildhu - wildhu colonies or societies that have established themselves in the larger environment, are no threat to themselves or to other sophonts, and are a negligible drain on local resources, and hence are allowed to remain (these societies rarely last longer than a few centuries, often much less).
Feral Wildhu - colonies that have developed beyond the reach or control of the sephirotic hyperturings or administrators.